Dear all,
I'm new to using ALPS and not entirely confident with setting up my model, 
which didn't appear to work at the moment. I'm interested in polaritonic 
system -- evanescently coupled-cavity system, each cavity containing a
two-level atom. I have set up my model in the attached xml, Sminus and Splus 
are atomic projection operators and b are photon annihilation operator.
The total number of excitations (atomic and photonic) is conserved. 
When I try running it, there is an bad_alloc error. Will anyone
be kindly give me some pointers? Much appreciated and thank you very much
in advance.

Regards,
Chun-Hsu, Su